1.58 | ordinal quantity | ||

Quantity, defined by a conventional measurement procedure, for which a total ordering relation can be established, according to magnitude, with other quantities of the same kind of quantity, but for which no algebraic operations among those quantities exist. | |||

Example 1: | Rockwell C hardness. | ||

Example 2: | Octane number for petroleum fuel. | ||

Example 3: | Earthquake strength on the Richter scale. | ||

Example 4: | Subjective level of abdominal pain on a scale from zero to five. | ||

Note 1: | Ordinal quantities can enter into empirical relations only and have neither measurement units nor quantity dimensions. Differences and ratios of ordinal quantities have no physical meaning. | ||

Note 2: | Ordinal quantities are arranged according to ordinal quantity-value scales [VIM 1.28]. | ||

Source: [VIM 1.26]. |

1.58 | ordinal quantity | ||

Quantity, defined by a conventional measurement procedure, for which a total ordering relation can be established, according to magnitude, with other quantities of the same kind of quantity, but for which no algebraic operations among those quantities exist. | |||

Example 1: | Rockwell C hardness. | ||

Example 2: | Octane number for petroleum fuel. | ||

Example 3: | Earthquake strength on the Richter scale. | ||

Example 4: | Subjective level of abdominal pain on a scale from zero to five. | ||

Note 1: | Ordinal quantities can enter into empirical relations only and have neither measurement units nor quantity dimensions. Differences and ratios of ordinal quantities have no physical meaning. | ||

Note 2: | Ordinal quantities are arranged according to ordinal quantity-value scales [VIM 1.28]. | ||

Source: [VIM 1.26]. |

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